About

Tangshan Haigong Machinery Equipment Co., Ltd.

Founded in 2013 with registered capital of RMB 20 million, Tangshan Haigong Machinery Equipment Co., Ltd. is engaged in the manufacturing and R&D of dredging vessels with its own design and development team. The company has long worked with waterway authorities and dredging enterprises, serving more than 30 provinces, municipalities and autonomous regions in China and exporting to Vietnam, Indonesia, Malaysia, Nigeria, the Philippines and other markets. In addition to complete dredger manufacturing and repair, its main products include split cutter suction dredgers, dredging cutter heads, mud pumps and accessories, suction and discharge pipelines, spray nozzles, traverse pulley assemblies, grab buckets, scraper dredging tools, anchor buoys and drag heads with single- or double-tooth configurations. The company also undertakes equipment fabrication for metallurgy, cement, coal and petroleum industries. In 2021, it independently developed 22 laser cladding units and expanded into laser cladding, remanufacturing and surface strengthening for power, metallurgy, steel and machinery applications. TSHAIGONG provides 24-hour on-site service and follows a quality- and reputation-led approach.

Tangshan Haigong Machinery Equipment Co., Ltd. · TSHAIGONG · Company website: tshaigong.cn · Identity summary

Tangshan Haigong Machinery Equipment Co., Ltd.

Company Facts

Founded in 2013 with registered capital of RMB 20 million, Tangshan Haigong Machinery Equipment Co., Ltd. is engaged in the manufacturing and R&D of dredging vessels with its own design and development team. The company has long worked with waterway authorities and dredging enterprises, serving more than 30 provinces, municipalities and autonomous regions in China and exporting to Vietnam, Indonesia, Malaysia, Nigeria, the Philippines and other markets. In addition to complete dredger manufacturing and repair, its main products include split cutter suction dredgers, dredging cutter heads, mud pumps and accessories, suction and discharge pipelines, spray nozzles, traverse pulley assemblies, grab buckets, scraper dredging tools, anchor buoys and drag heads with single- or double-tooth configurations. The company also undertakes equipment fabrication for metallurgy, cement, coal and petroleum industries. In 2021, it independently developed 22 laser cladding units and expanded into laser cladding, remanufacturing and surface strengthening for power, metallurgy, steel and machinery applications. TSHAIGONG provides 24-hour on-site service and follows a quality- and reputation-led approach.

Founded
2013
Registered Capital
RMB 20 million
Self-developed Equipment
22 laser cladding units developed in 2021
Contact Person
Mr. Xin

Business Capabilities

Core Capability

Core business includes dredger manufacturing and R&D, dredging vessel spare parts, laser cladding and surface strengthening, plus equipment fabrication for metallurgy, cement, coal and petroleum industries.

Service Scope

  • Split cutter suction dredgers
  • Dredging vessel spare parts
  • Laser cladding, quenching, welding and alloying
  • Equipment fabrication for metallurgy, cement, coal and petroleum

Honors

Honors and Qualifications

The certificates below document company registration, three management systems, technology qualifications, association membership and nine utility model patents. Names, numbers and dates are transcribed from the source certificates.

Business licenseThree management system certificatesHigh and new technology enterpriseHebei innovative SMEHebei industrial R&D institutionSurface engineering association memberNine utility model patents

These details reflect the certificates at issuance. Refer to issuing authorities for current patent legal status and subsequent certificate changes.

Business License
Company Registration

Business License

Company
Tangshan Haigong Machinery Equipment Co., Ltd.
Company type
Limited liability company (natural person investment or holding)
Unified social credit code
9113028206165952XU
Legal representative
Xin Jianzhong
Registered capital
RMB 20 million
Established
2013-01-23
Business term
Until 2033-01-22
Registered address
West of Dongdaizhuang Village, Wanglanzhuang Town, Fengnan District, Tangshan; north of National Highway 205
Registration date shown
2021-05-27
Business scope (summary)
Machinery processing and repair, ship parts, dredging equipment, and R&D and manufacturing of laser cladding products and equipment
Quality Management System Certificate
Management Systems

Quality Management System Certificate

Certified organization
Tangshan Haigong Machinery Equipment Co., Ltd.
Certification body
China Classification Society Certification Co., Ltd.
Standard
GB/T 19001-2016 / ISO 9001:2015
Certificate number
00525Q0543R2S
Scope
Manufacturing of mechanical parts (ship accessories)
Previous cycle deadline
2025-01-31
Recertification audit
2024-12-05 to 2024-12-07
Issue date
2025-01-26
Expiry shown on certificate
2028-01-31
Occupational Health and Safety Management System Certificate
Management Systems

Occupational Health and Safety Management System Certificate

Certified organization
Tangshan Haigong Machinery Equipment Co., Ltd.
Certification body
China Classification Society Certification Co., Ltd.
Standard
GB/T 45001-2020 / ISO 45001:2018
Certificate number
00525S0545R2S
Scope
Manufacturing of mechanical parts (ship accessories)
Previous cycle deadline
2025-01-31
Recertification audit
2024-12-05 to 2024-12-07
Issue date
2025-01-26
Expiry shown on certificate
2028-01-31
Environmental Management System Certificate
Management Systems

Environmental Management System Certificate

Certified organization
Tangshan Haigong Machinery Equipment Co., Ltd.
Certification body
China Classification Society Certification Co., Ltd.
Standard
GB/T 24001-2016 / ISO 14001:2015
Certificate number
00525E0544R2S
Scope
Manufacturing of mechanical parts (ship accessories)
Previous cycle deadline
2025-01-31
Recertification audit
2024-12-05 to 2024-12-07
Issue date
2025-01-26
Expiry shown on certificate
2028-01-31
High and New Technology Enterprise Certificate
Technology Qualification

High and New Technology Enterprise Certificate

Company
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate number
GR202513000776
Issue date
2025-10-28
Validity stated on certificate
Three years
Hebei Industrial Enterprise R&D Institution Certificate
Technology Qualification

Hebei Industrial Enterprise R&D Institution Certificate

Company
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate number
2025B12581
R&D institution
R&D Department
Development type
Self-built (B)
Recognition authority
Tangshan Bureau of Industry and Information Technology
Issuing authority
Hebei Department of Industry and Information Technology
Hebei Innovative SME Certificate
Technology Qualification

Hebei Innovative SME Certificate

Company
Tangshan Haigong Machinery Equipment Co., Ltd.
Issuing authority
Hebei Department of Industry and Information Technology
Validity shown on certificate
2024-09 to 2027-09
China Surface Engineering Association Membership Certificate
Industry Association

China Surface Engineering Association Membership Certificate

Member organization
Tangshan Haigong Machinery Equipment Co., Ltd.
Organization head
Xin Jianzhong
Branch
Thermal Spraying Branch
Certificate number
Thermal Spraying Branch No. 1166
Issue date
2025-09
Validity shown on certificate
2025-09 to 2027-09
Laser Clad Cutter Tooth
Utility Model Patent

Laser Clad Cutter Tooth

Patent title
Laser Clad Cutter Tooth
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
19774601
Patent number
ZL202321095517.4
Grant publication number
CN219794052U
Application date
2023-05-09
Grant publication date
2023-10-03
Inventors
Xin Jianzhong, Guo Jianbo, Wu Jianjun
Bimetal Composite Cutter Tooth
Utility Model Patent

Bimetal Composite Cutter Tooth

Patent title
Bimetal Composite Cutter Tooth
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22733950
Patent number
ZL202421575278.7
Grant publication number
CN222745156U
Application date
2024-07-04
Grant publication date
2025-04-11
Inventors
Xin Jianzhong, Guo Jianbo
Alloy Welded Cutter Structure
Utility Model Patent

Alloy Welded Cutter Structure

Patent title
Alloy Welded Cutter Structure
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22723350
Patent number
ZL202421575314.X
Grant publication number
CN222745157U
Application date
2024-07-04
Grant publication date
2025-04-11
Inventors
Xin Jianzhong, Guo Jianbo
Laser Clad Laminar Cooling Roll
Utility Model Patent

Laser Clad Laminar Cooling Roll

Patent title
Laser Clad Laminar Cooling Roll
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22854040
Patent number
ZL202421888762.5
Grant publication number
CN222861643U
Application date
2024-08-06
Grant publication date
2025-05-13
Inventors
Xin Jianzhong, Guo Jianbo, Dai Mingjie, Xin Jiantao, Liu Ningning, Qi Hongyu
Laser Clad Pinch Roll
Utility Model Patent

Laser Clad Pinch Roll

Patent title
Laser Clad Pinch Roll
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22851336
Patent number
ZL202421888751.7
Grant publication number
CN222861642U
Application date
2024-08-06
Grant publication date
2025-05-13
Inventors
Xin Jianzhong, Guo Jianbo, Dai Mingjie, Xin Jiantao, Liu Ningning, Qi Hongyu
Laser Clad Rolling Mill Liner
Utility Model Patent

Laser Clad Rolling Mill Liner

Patent title
Laser Clad Rolling Mill Liner
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22848579
Patent number
ZL202421889660.5
Grant publication number
CN222856281U
Application date
2024-08-06
Grant publication date
2025-05-13
Inventors
Xin Jianzhong, Guo Jianbo, Dai Mingjie, Xin Jiantao, Liu Ningning, Qi Hongyu
Laser Clad Bearing Housing
Utility Model Patent

Laser Clad Bearing Housing

Patent title
Laser Clad Bearing Housing
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22769558
Patent number
ZL202421888763.X
Grant publication number
CN222782905U
Application date
2024-08-06
Grant publication date
2025-04-22
Inventors
Xin Jianzhong, Guo Jianbo, Dai Mingjie, Xin Jiantao, Liu Ningning, Qi Hongyu
Laser Clad Rolling Mill Flat Head Sleeve
Utility Model Patent

Laser Clad Rolling Mill Flat Head Sleeve

Patent title
Laser Clad Rolling Mill Flat Head Sleeve
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22918787
Patent number
ZL202421901589.8
Grant publication number
CN222931563U
Application date
2024-08-07
Grant publication date
2025-06-03
Inventors
Xin Jianzhong, Guo Jianbo, Dai Mingjie, Xin Jiantao, Liu Ningning, Qi Hongyu
Laser Nano-alloyed Roll
Utility Model Patent

Laser Nano-alloyed Roll

Patent title
Laser Nano-alloyed Roll
Patentee
Tangshan Haigong Machinery Equipment Co., Ltd.
Certificate serial
22940194
Patent number
ZL202421901585.X
Grant publication number
CN222944191U
Application date
2024-08-07
Grant publication date
2025-06-06
Inventors
Xin Jianzhong, Guo Jianbo, Dai Mingjie, Xin Jiantao, Liu Ningning, Qi Hongyu

Product Categories

Dredger Manufacturing & R&D

Complete manufacturing, repair and R&D for split cutter suction dredgers

Dredging Vessel Spare Parts

Cutter heads, spray nozzles, grab buckets, scraper dredging tools, anchor buoys, suction and discharge pipelines and drag heads

Laser Cladding & Surface Strengthening

Laser cladding, laser quenching, laser welding and laser alloying

Metallurgy, Mining & Industrial Parts

Equipment fabrication and repair for metallurgy, cement, coal and petroleum industries

Marine & Hydraulic Structures

Non-standard structural parts for vessels, dredging and hydraulic equipment

Marine Products

Dredger pipeline rotary joints and slurry pipeline gate valves

Contact

Phone
+86 13932536797
Landline
+86 315 8311619
Email
hb@tshaigong.com
Address
Fengnan District, Tangshan, Hebei, China